Patents for H02P 7 - Arrangements for regulating or controlling the speed or torque of electric dc-motors (10,217) |
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11/25/2009 | EP2122304A2 Controlling a power of an electrical motor |
11/24/2009 | US7623770 Fan control system |
11/24/2009 | US7623328 Driving control apparatus for motion mechanism and control method of driving control apparatus |
11/24/2009 | US7622877 Method and system for controlling permanent magnet AC machines |
11/19/2009 | US20090284197 Motor driving circuit and load driving apparatus with pulse width modulation |
11/19/2009 | US20090282636 Device and method for actuating a drive unit of a wiper system |
11/18/2009 | CN201349194Y Control circuit for motor of pulper |
11/18/2009 | CN101582668A Method and device for preventing motor from being blocked based on brake-by-wire system of automobile |
11/18/2009 | CN100560966C Controlling device for internal combustion engine |
11/17/2009 | US7619381 Open/close member control apparatus |
11/17/2009 | US7619379 Motor control device and setting method thereof |
11/12/2009 | DE102008022872A1 Method for determining position, rotation angle or speed of electrical drive, involves detecting electrical signal of direct current motor of electrical drive, and delivering adaptive filter which has changeable midband frequency |
11/12/2009 | DE102008022638A1 Method for extraction of stroke or angle information from electrical signal of electrical drive, involves detecting electrical signal which is filtered from filter, where filtered electrical signal is generated |
11/11/2009 | EP2116857A1 Method and device for logging electricity polarity within a synchronised bridge section |
11/11/2009 | CN101577520A Operating system for portable direct current electric tool |
11/11/2009 | CN101577519A Linear motor driver |
11/11/2009 | CN101575523A Electric control withdrawing device for coke pushing rod and coal carrying plate |
11/11/2009 | CN100559696C Motor drive circuit |
11/10/2009 | US7615951 Method and system for limiting the operating temperature of an electric motor |
11/10/2009 | US7615950 Control device for hybrid electric vehicle |
11/10/2009 | US7615946 Fan speed control device |
11/10/2009 | CA2432512C Power tools |
11/09/2009 | CA2631299A1 Brushless motor speed control system |
11/05/2009 | DE102008021071A1 Electric motor i.e. brush commutated electric motor, for use as actuating drive of motor vehicle, has brush commutator provided with brushes, which are movably arranged at brush offset angle to each other |
11/03/2009 | US7612512 Electronic control unit for controlling external half-bridge power output stages and an electric motor operated drive with electronic control unit |
11/03/2009 | CA2305125C Circuit arrangement with half-bridge |
10/29/2009 | WO2009094541A3 Generating electromagnetic forces with flux feedback control |
10/29/2009 | US20090269043 Apparatus and method for control of an active front steering (afs) system |
10/29/2009 | US20090266313 Fan system and a method for controlling a fan motor |
10/29/2009 | DE102008020316A1 Schaltungsanordnung und Verfahren zur Ansteuerung einer Elektromotoreinheit, insbesondere einer Wischermotoreinheit Circuit arrangement and method for controlling an electric motor unit, in particular a wiper motor unit |
10/28/2009 | CN101567656A Switch type regulating circuit and double-coil motor device |
10/28/2009 | CN100555796C Battery pack, cordless power tool and its identification method |
10/22/2009 | WO2009127472A1 Electrical motor activation method having load torque adaptation |
10/22/2009 | US20090263110 Soft start motor control using back-EMF |
10/22/2009 | DE102008019546A1 Motorpumpenaggregat für Kraftfahrzeugbremsenregelungssysteme Motor pump unit for motor vehicle brake control systems |
10/22/2009 | DE102008018818A1 Elektrisches Motoransteuerungsverfahren mit Lastmomentanpassung Electric motor driving method with load torque adjustment |
10/21/2009 | CN201332376Y Cell phone motor stepless speed regulating system |
10/21/2009 | CN201332358Y Motor startup circuit |
10/21/2009 | CN101558949A Electronic photo frame |
10/21/2009 | CN100553110C Controller for inductive load current |
10/21/2009 | CN100553109C Method and system for regulating feeding wire speed |
10/21/2009 | CN100552572C Control apparatus for electric actuator |
10/21/2009 | CN100551736C Electrically operated drive controller, electrically operated drive control method |
10/15/2009 | WO2008128893A3 Electric tool and device switch for an electric tool |
10/15/2009 | US20090257740 Switching Regulation Circuit and Dual-Winding Motor Apparatus |
10/15/2009 | US20090256514 System for suppressing wheel acceleration after a slip |
10/15/2009 | US20090256513 Power output apparatus, vehicle equipped with power output apparatus, and control method of power output apparatus |
10/15/2009 | US20090255278 Refrigerant System With Variable Speed Drive |
10/14/2009 | EP2109211A1 System and method for determining position or speed of a commutaded DC motor with error correction |
10/13/2009 | US7602131 Voice coil motor control system and method using pulse width modulation |
10/13/2009 | US7602130 Apparatus for self-generating a driving force to rotate a shaft without external power after initial activation |
10/06/2009 | US7599612 Method of calibrating a motorized roller shade |
10/06/2009 | US7598691 Current control device and method |
10/06/2009 | US7598687 Method and control unit for controlling fan motors |
10/06/2009 | CA2509270C Motor-generator system with a current control feedback loop |
10/01/2009 | US20090247027 Motorized Push Pole Device |
10/01/2009 | US20090243529 Motor driving circuit and method thereof |
10/01/2009 | DE102009012112A1 Kraftstoffpumpensteuervorrichtung Fuel pump control device |
09/30/2009 | CN101546979A DC motor speed regulation method based on automobile line control dynamic system and device thereof |
09/29/2009 | US7596304 Starting device and method for eliminating a peak current |
09/29/2009 | US7595600 Method and system for torque control in permanent magnet machines |
09/29/2009 | US7595598 Magnetizing motor and magnetizing method thereof |
09/24/2009 | WO2009065540A3 Fan arrangement in which the consumed electric power is influenced |
09/24/2009 | DE102008014626A1 Electric motor for operation of exhaust fan of portable household vacuum cleaner, has control device releasing voltage supply by accumulator corresponding to predetermined fallen down voltage value in case of falling down of voltage value |
09/23/2009 | EP2104223A2 Switching unit for controlling an electronically commuted ventilation motor |
09/23/2009 | EP2102979A1 Controller for electrically adjustable furniture |
09/23/2009 | CN201315562Y Control circuit for electric base of liquid crystal television set |
09/23/2009 | CN101542892A Electronically commutated motor and control system employing phase angle control of phase current |
09/23/2009 | CN100544185C DC motor control circuit |
09/17/2009 | WO2009112094A1 Electric motor, motor system and method for determining an absolute relative position of a rotor of an electric motor |
09/17/2009 | DE102008061514A1 Method for counting pulse at mechanic commutated electric motor in motor vehicle, involves counting pulse by control device based on voltage change in region during rotation of motor, where region is provided with changeable resistance |
09/17/2009 | DE102008000618A1 Evaluation device for determining rotational speed of direct-current operated electric motor in motor system, has determination unit determining rotational speed of electric motor based on process of signal evaluated by demodulator |
09/17/2009 | DE102008000614A1 Elektromotor, Motorsystem und Verfahren zur Bestimmung einer absoluten Winkellage eines Rotors eines Elektromotors Electric motor, engine system and method for determining an absolute angular position of a rotor of an electric motor |
09/16/2009 | CN101536301A Method for determining the angular position of the rotor of a mechanically commutated DC servo motor |
09/16/2009 | CN101531134A Wheel driving apparatus and electric vehicle including the same |
09/16/2009 | CN100541957C Monitoring device, electrical machine tool, current supply device, and associated method of operation |
09/15/2009 | US7589486 Control system for multiphase rotary electric machines |
09/15/2009 | US7589482 Hot spot sensoring control of linear motors |
09/11/2009 | WO2009111503A2 Phase logic circuits for controlling motors |
09/11/2009 | CA2717416A1 Phase logic circuits for controlling motors |
09/10/2009 | US20090226154 DC motor drive |
09/10/2009 | US20090224714 Fuel pump control apparatus |
09/10/2009 | US20090224713 Method for operating a parallel hybrid drive |
09/10/2009 | US20090223948 Magnetic water heater |
09/09/2009 | CN101527535A Device for controlling current and method thereof |
09/09/2009 | CN100539392C Motor control apparatus |
09/09/2009 | CN100539390C Electric motor driving controller |
09/08/2009 | US7586278 Control apparatus for electric vehicles |
09/08/2009 | US7586277 Electric power steering device |
09/03/2009 | WO2009107183A1 Control device and control method for control valve |
09/03/2009 | WO2009106508A1 H-bridge circuit and method for operating such circuit |
09/03/2009 | US20090220219 Delta-Sigma Modulator for a Fan Driver |
09/03/2009 | US20090218975 Actuator System |
09/03/2009 | US20090218968 Control system for controlling motors for heating, ventilation and air conditioning or pump |
09/03/2009 | US20090218963 Linear motor automatic control circuit assembly for controlling the operation of a 3-phase linear motor-driven submersible oil pump of an artificial oil lift system |
09/02/2009 | EP2096749A1 Pulse count control for brushed DC motor driven by pulse with modulation |
09/02/2009 | EP2096744A1 H-Bridge circuit and method for operating such circuit |
09/02/2009 | EP2005561B1 Drive and evaluation unit |
09/02/2009 | EP1733471B1 Device for controlling an electric motor, especially in motor vehicles |
09/02/2009 | EP1208639B1 Method for providing a digital current fluctuation signal |